/Engine/Source/Editor/EditorFramework/Public/Toolkits/ToolkitManager.h
Tries to find an open asset editor that's editing the specified asset, and returns the toolkit for that asset editor
[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [IToolkit](API\Editor\EditorFramework\Toolkits\IToolkit) > FindEditorForAsset ( const [UObject](API\Runtime\CoreUObject\UObject\UObject) * Asset )